Synonym of "scrap" in the given econtext

Question

Here is a description of a battle game from the Internet:

Once you take a good amount of damage, it will cost hundreds and eventually thousands of scrap. But you can bypass this entirely with one 300 scrap health power-up. The difference is that you need to equip it to one of your power-up slots and use it during gameplay, but so what? It is insanely cheap. Likewise, you never really know where to spend your money, either on new guns or upgrading, and it’s a total crapshoot with almost everything being unlocked from the start. And most of these things are pretty expensive.

This lack of direction leads to weird pacing. Once you upgrade your chassis the first time, you’ll gain access to the second area of the game, along with your 2 new gun slots. This is where the game becomes truly fun, as you get much more scrap and can experiment more frequently.

Here I am looking for an easier synonym of the word "scrap" to make a similar texts easier for my target readers who are not well versed with game's terms.

Answer 1

scrap (n): 2 Discarded metal for reprocessing. 2.1 Any waste articles or discarded material.

It sounds like when you destroy enemies in the game they they drop "scrap", which you can then collect and later use to upgrade your vehicle. The exact nature of the scrap is not important -- it's just used as a kind of in-game currency, as certain upgrades will cost a certain amount of scrap.

Many games use a similar scrap mechanic, although they might use a different term for it.